I mentioned it one time. I guess that's some sort of definition of "constantly". ;-)
I'm not confusing anything though. I just have an expectation that I won't be dialing into some arcane menu system to retrieve just the messages I want. I haven't done so for almost 7 years. I don't pay too much attention to other's habits, but I haven't noticed anyone else do that for almost as long.
Visual Voicemail is the only voicemail I'd bother with. I'd guess that's pretty typical these days. I've even gone months after switching carriers having not even called the carrier to get voicemail set up because who leaves voicemails anyways but telemarketers?
Maybe it's different outside the US or in developing markets with a lot of feature-phones. I wouldn't know. This is just my own experience in DFW.